12211522297 has 32 divisors (see below), whose sum is σ = 14112917280. Its totient is φ = 10466426880.

The previous prime is 12211522163. The next prime is 12211522321. The reversal of 12211522297 is 79222511221.

It can be written as a sum of positive squares in 16 ways, for example, as 972130041 + 11239392256 = 31179^2 + 106016^2 .

It is not a de Polignac number, because 12211522297 - 2²³ = 12203133689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211522597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6017479 + ... + 6019507.

It is an arithmetic number, because the mean of its divisors is an integer number (441028665).

Almost surely, 2^12211522297 is an apocalyptic number.

12211522297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12211522297 is a deficient number, since it is larger than the sum of its proper divisors (1901394983).

12211522297 is a wasteful number, since it uses less digits than its factorization.

12211522297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413.

The product of its digits is 10080, while the sum is 34.

The spelling of 12211522297 in words is "twelve billion, two hundred eleven million, five hundred twenty-two thousand, two hundred ninety-seven".